12. 'Batman: R.I.P.'
Returning to the character that made him a star, Arkham Asylum writer Grant Morrison began a multiyear Batman mega-story that's spanned multiple series and is still going strong. Its first act climaxed in R.I.P., a riveting horror-conspiracy story illustrated by Tony S. Daniel in which sinister forces shatter Batman's mind, only to unleash his even crazier, more unstoppable backup personality – that's right, his backup personality – created years ago just in case his enemies managed to mentally incapacitate him. It's stand-up-and-cheer stuff even for seasoned Bat-fans.